Source: CQ Presscompiled this index using data reported by the Federal Bureau of Investigation's"Crime in the United States 2011." *The crime index is a weighted average of six crime categories murder, rape, robbery, aggravated assault, burglary, and motor vehicle theft. The national rate is 1 and any number higher than that indicates a higher than average incidence of crime. **List includes cities with populations of 250,000 or more.